Cosmetic brush



FIG. 1 is a perspective view of the cosmetic brush.

FIG. 2 is a front view of the cosmetic brush.

FIG. 3 is a back view of the cosmetic brush.

FIG. 4 is a side view of the cosmetic brush.

FIG. 5 is a side view of the cosmetic brush.

FIG. 6 is a top view of the cosmetic brush; and,

FIG. 7 is a bottom view of the cosmetic brush. 

CLAIM I claim the ornamental design for a cosmetic brush, as shown. 